Mint is a green herb with a bright, cool taste and smell. The best part about brushing your teeth is the clean flavor of mint in your mouth afterward.
Mint plants smell great, and you can even chew the leaves as a natural breath freshener. The sweet, clean flavor is common in chewing gum, dental floss, and candy (in fact, a mint-flavored candy is called a mint). A completely different sort of mint is a place where money is made, or minted. Informally, an enormous amount of money is also a mint: "He inherited a mint and bought a Rolls Royce."